Any Honda CBX engined 7's out there

[David C]

I used to own a Honda CBX years ago and loved the sound of the 6-cylinder engine.

Granted these days the output is on the lower end of the scale (102 HP stock IIRC) out of 1047 cc.

Here is a good clip of what one sounds like.

 

Has anyone done this?

[slngsht]

Sounds pretty sweet.

[David C]

I had a Kerker 6 into 2 on it so it was especially great sounding. A friend said it reminded him of Ferrari V-12s.

 

Or maybe I should go one step more towards insanity and build a seven around v-12 6-speed; I'm just not sure where I'd sit

[scannon]

IIRC, the CBX drive comes off the middle of the crankshaft. Sounds like a good candiate for a rear engined Se7en.

 

Another plus is with the air cooled CBX engine in the back, your feet won't get cooked like so many of us with our front engine water cooled Se7ens.

 

Skip

[David C]

Yes the drive chain for the tranny comes off the middle but tranny output sprocket is on the left. I'll have to do more research and look at build blogs to get more of idea about typical layouts.

 

Sometimes engine heat is welcome. I'm probably one of the few that have ridden a CBX on snowy roads and tucking my icicle hands down behind the engine was welcome heat. Went everywhere with it - had over 50K miles on it when I sold it.

 

Also have a dead Miata that gave up its parts for a planned Flyin' Miata Westy kit. May do that first & then take on a BEC. But even the Westy is behind another project - bought a friend's BMW 850 with a tweaked V-12 & custom fabbed roll bar. Some assembly required though (cough cough). All the wiring, computers, hydraulics, nose picker servo motors, sensors, gizmos, and the sound proofing probably weigh as much as a Seven.

 

 

[locostv8]

... bought a friend's BMW 850 with a tweaked V-12 & custom fabbed roll bar. Some assembly required though (cough cough). All the wiring, computers, hydraulics, nose picker servo motors, sensors, gizmos, and the sound proofing probably weigh as much as a Seven.

 

 

That would make a nice donor for a 7.

[David C]

Thought about it, but looking at the photos of that Jag v-12 custom 7 project abandoned onto e-bay last year was not encouraging.

The proportions would probably be ungainly and it would probably lose a lot of appeal of the 7 and cooling it would be an issue. Overheat a BMW v-12 and you are looking at a new shortblock at least as the bores permanently warp.

 

But yeah I thought about it. The motor probably puts out about 350 HP now but the added weight of the engine, tranny, driveshaft, diff, axles, rear suspension & chassis reinforcements, bigger brakes, bigger wheels/tires, bigger car, etc etc.... I'd hazaard a guess that it would weigh 1900 lbs. A dry sump, custom intake manifolds, and externalizing the exhaust headers to give people burns would shrink the size of the lump a bit to allow tighter body work but the length of the motor plus the width of the tranny would lengthen and/or widen the car.

 

And it still wouldn't sound as cool as the CBX.

[gjslutz]

My last bike was a CBX that was much worked over, all of 125 HP on the rear. It was on the front edge of the performance bikes in the day (1983). It did very well up to the time I parked it in the trunk of a old Impala @ 125. The way it was set up 146 was 1,000 over red line. That is one reasons in and out of a seven with a roof is a little problem now.

[David C]

Um OW!!!

I'm trying to visualize your trajectory - next zip code?

You are one lucky guy.

 

So what do you think of the idea of a CBX 7?

[gjslutz]

David, go for it, it is a great engine with loads of torque. I have no numbers on the torque of the CBX or the new bikes either. I do know mine in the first 3 gears was on one wheel or sideways. It should do well in a 7 type. Would it be narrow enough to fit? 1 for the front & 1 for the rear? Forced induction?

 

I went into a handstand and cleared the car, I doubt if I did much more than 300' on a down hill flight. I busted enough bones to cancel a season of airshow contracts. I never claimed to be too smart, but did / do enjoy the rush.